Home / 385,260.30-577,890.45-259,289.10

Finding the Fourth Proportional to 385,260.30, 577,890.45 and 259,289.10

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Solution

The fourth proportional to 385,260.30, 577,890.45 and 259,289.10 is: 388,933.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,260.30 : 577,890.45 = 259,289.10 : x
  2. Step 2: Convert to fraction form
    385,260.30/577,890.45 = 259,289.10/x
  3. Step 3: Cross multiply
    385,260.30x = 577,890.45 × 259,289.10
  4. Step 4: Simplify right side
    385,260.30x = 149,840,694,679.10
  5. Step 5: Solve for x
    x = 149,840,694,679.10/385,260.30
  6. Step 6: Final answer
    x = 388,933.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.